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DS-C9148T-24EK9 – 48 ports – managed – rack-mountable
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| Weight | 13.3 kg |
|---|---|
| Dimensions | 65 × 60 × 17 cm |
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DS-C9148T-24EK9 Description
Cisco DS-C9148T-24EK9 is the port-side exhaust airflow variant of the Cisco MDS 9148T 32-Gbps Fibre Channel switch. It provides 48 physical FC ports with 24 ports active at delivery and simple 8-port POD expansion to 48, delivering predictable low latency and line-rate forwarding for all-flash arrays, transactional databases, and dense virtualization clusters. The platform is NVMe/FC-ready, supports VSANs and Inter-VSAN Routing, and includes hardware-assisted SAN Analytics, slow-drain detection, and model-driven telemetry to accelerate troubleshooting and capacity planning. With redundant hot-swappable power supplies and fans plus resilient ISL port-channeling, DS-C9148T-24EK9 fits 1RU access/edge SAN designs that require exhaust airflow while preserving future scale and automation via Cisco NDFC/DCNM, REST/NX-API, Python, and Ansible.
Key Features
Right-sized 32G FC edge with room to grow
24 active ports on day one, expandable in 8-port steps to 48 to match host and array growth without hardware changes.
NVMe/FC adoption without disruption
Run SCSI/FCP today and transition to NVMe/FC on the same fabric, preserving zoning, policies, and operational runbooks.
Built-in analytics and faster operations
Hardware-assisted SAN Analytics, slow-drain detection, ISL/HBA diagnostics, and streaming telemetry reduce MTTR and support proactive capacity planning.
Enterprise-grade resilience
Redundant hot-swappable PSUs and fans plus ISL port-channels and consistent forwarding support 24×7 data-center operations.
Secure multi-tenant segmentation
VSANs, Smart/Auto Zoning, and IVR (license) provide isolation and granular QoS for mixed workloads or departments.
Data-center friendly airflow and footprint
Port-side exhaust variant aligns with hot/cold-aisle policy; compact 1RU chassis simplifies cable management and rack density.
Applications Scenarios
Hybrid cloud backup and rapid restore
Deterministic 32G FC throughput for backup/replication windows, with analytics to validate headroom and isolate slow-drain endpoints.
Retail and branch consolidation
Reliable, low-latency SAN for PoS databases, inventory systems, and overnight batch jobs, with VSAN-based isolation between departments or tenants.
Media production ingest and nearline tiers
Predictable performance for high-bitrate ingest and nearline storage; exhaust airflow matches front-to-back cooling in shared post-production racks.
Front View
|
1 |
Serial console port |
7 |
Activity status LED |
|
2 |
System status LED |
8 |
Ethernet management ports (2) |
|
3 |
Power status LED |
9 |
Fixed FC ports |
|
4 |
Fan status LED |
10 |
FC port status LEDs (48) |
|
5 |
USB port |
11 |
Airflow grill |
|
6 |
Link status LED |
Rear View
|
1 |
Power supply failure status LED |
6 |
Power supply status LED |
|
2 |
Power supply unit fan |
7 |
Power supply units (2 units) |
|
3 |
Power supply unit handle |
8 |
Chassis fan modules (4 units) |
|
4 |
Unswitched power receptacle |
9 |
Chassis fan module release latches (8) |
|
5 |
Power supply unit latch release |
|
1 |
Power supply unit slot 1 |
4 |
Chassis fan module slot 3 |
|
2 |
Chassis fan module slot 1 |
5 |
Chassis fan module slot 4 |
|
3 |
Chassis fan module slot 2 |
6 |
Power supply unit slot 2 |
Product Comparison
|
Item |
DS-C9148T-24EK9 | |||
|---|---|---|---|---|
|
Product Series |
Cisco MDS 9148T |
Cisco MDS 9148T |
Cisco MDS 9148T |
Cisco MDS 9148T |
|
Switch Type |
32G Fibre Channel SAN Switch |
32G Fibre Channel SAN Switch |
32G Fibre Channel SAN Switch |
32G Fibre Channel SAN Switch |
|
Physical FC Ports |
48 x 32G FC |
48 x 32G FC |
48 x 32G FC |
48 x 32G FC |
|
Activated Ports (Default) |
24 |
24 |
48 |
48 |
|
Port Expansion |
License-based to 48 ports |
License-based to 48 ports |
All ports activated |
All ports activated |
|
Supported FC Speeds |
8 / 16 / 32 Gbps |
8 / 16 / 32 Gbps |
8 / 16 / 32 Gbps |
8 / 16 / 32 Gbps |
|
Optics Interface |
32G FC SFP+ |
32G FC SFP+ |
32G FC SFP+ |
32G FC SFP+ |
|
Switching Architecture |
Non-blocking |
Non-blocking |
Non-blocking |
Non-blocking |
|
Fabric Services / Trunking |
Supported |
Supported |
Supported |
Supported |
|
Operating System |
Cisco NX-OS (MDS) |
Cisco NX-OS (MDS) |
Cisco NX-OS (MDS) |
Cisco NX-OS (MDS) |
|
Power Supply |
Dual, hot-swappable |
Dual, hot-swappable |
Dual, hot-swappable |
Dual, hot-swappable |
|
Fans |
Redundant fan modules |
Redundant fan modules |
Redundant fan modules |
Redundant fan modules |
|
Airflow Direction |
Port-side Exhaust (E) |
Port-side Intake (I) |
Port-side Exhaust (E) |
Port-side Intake (I) |
|
Form Factor |
1RU |
1RU |
1RU |
1RU |
|
Typical Deployment |
Mid-size SAN core / aggregation |
Mid-size SAN core / aggregation |
High-density SAN core |
High-density SAN core |
Model Selection Guide – DS-C9148T-24EK9
DS-C9148T-24EK9 is designed for 32G Fibre Channel SAN deployments that need 24 active ports with the ability to scale to 48 ports via licensing. It is a strong fit for mid-size SAN core or aggregation layers where future expansion is expected.
• DS-C9148T-24IK9 delivers identical performance and features; the only difference is airflow direction, which should be selected based on data center cooling design.
• DS-C9148T-48PETK9 and DS-C9148T-48PITK9 come with all 48 ports activated and are recommended for high-density SAN core deployments requiring full port availability from day one.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product model | DS-C9148T-24EK9 (MDS 9148T series) | Form factor | 1RU fixed FC switch |
| Physical FC ports | 48 x SFP+/SFP28 Fibre Channel | Base licensed ports | 24 active, scalable to 48 |
| Port speeds | Auto-sensing 4/8/16/32Gbps | Performance | Non-blocking, line-rate on licensed ports |
| Aggregate bandwidth | Up to 1.536Tbps | Latency | Low, cut-through switching |
| Expansion model | Port-On-Demand in 8-port steps | Port-channel | ISL PortChannels for resiliency |
| Protocols | FCP, NVMe/FC | Fabric services | VSANs, IVR (license), Smart/Auto Zoning, QoS |
| Analytics/telemetry | Hardware-based SAN Analytics; model-driven telemetry | Diagnostics | ISL/HBA diagnostics, slow-drain detection, SPAN/RSPAN |
| Management | NX-OS CLI/SSH, SNMP, REST/NX-API | Controller | Cisco NDFC/DCNM |
| High availability | Hot-swappable dual PSUs and fans | Airflow | Port-side exhaust (blue) variant |
| Power | AC PSU options; 1 required, 2 for redundancy | Cooling | Redundant hot-swappable fan modules |
| Security | RBAC, TACACS+/RADIUS/LDAP/AD, Secure boot | FC-SP | DH-CHAP; optional link encryption |
| Automation | REST/NX-API, Python/Ansible; POAP | Call Home | Integrated |
| Front I/O | 48 x FC ports; USB; serial console | Management ports | Ethernet management for OOB |
| LEDs | System, fan, PSU, link/activity | Interoperability | MDS 9000 family per compatibility matrix |
| Dimensions/weight | 1RU; per datasheet | Environmental | Per datasheet (operating temp/humidity) |
| Power/thermal | Per PSU/datasheet | Certifications | Safety/EMC/RoHS per Cisco |
| Transceivers | Cisco 32G/16G/8G FC optics supported | Accessories | Rail kit, regional power cords (optics ordered separately) |
Get More Information
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Quality Certifications
Customer Reviews
Questions & Answers
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What makes DS-C9148T-24EK9 attractive for departmental SANs prioritizing simplicity and predictable performance?
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How can I ensure we don’t create hotspots as we add hosts?
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Does 24EK9 support NVMe/FC when we’re ready?
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What’s the recommended optics plan?
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How should I document initial deployment?
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Any tips for firmware upgrades?
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How do I isolate host issues from switch problems?
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Can we separate dev/test from production without adding complexity?
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What about slow-drain detection?
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What spares should be on-hand?
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